Help with calculate DAX!

[Cbutler]

I am having a blank moment. I am trying to do a simple calculate but I can not seem to get my filters working correctly.

How can I write a measure that shows, If school 1 is selected bring back the total for Catchment A

so,

School 1 slelected = 30 catchment 
School 2 selected = 30 catchment 

School 3 selected = 70 catchment 

School 4 selected = 70 catchment 

School	pupil numbers	Catchment
1	10	A
2	20	A
3	30	B
4	40	B

An easy one for someone who doesnt have brain fog I am sure! @Greg_Deckler ? 

[Cbutler · Accepted solution]

Thanks all! You helped me get to the right result! 

Here is what I was trying to do :0)

[eliasayy]

no probelm but for better practice use BLANK() instead of " " in the end because " " is text form to if you want to use it for other calculations

[eliasayy]

hello this works for me:

Filtered Sum = 
    CALCULATE (
        SUM ( Table1[pupil numbers ] ),FILTER(ALL(Table1),Table1[Catchment ] = MAX(Table1[Catchment ] ) 
    )
)​

 

 

[Jihwan_Kim]

Hi,

Please check the below picture and the attached pbix file.

expected result: =
IF (
    HASONEVALUE ( Data[School] ),
    CALCULATE (
        SUM ( Data[Pupil Numbers] ),
        FILTER ( ALL ( Data ), Data[Catchment] = MAX ( Data[Catchment] ) )
    )
)